Can Oscar Fish Live With Silver Arowana?
Oscar Fish and Silver Arowana are compatible. Temperature overlap 75–81°F.
Conditions: Minimum 125 gallon tank.
Parameter Comparison
| Parameter | Oscar Fish | Silver Arowana | Overlap |
|---|---|---|---|
| Temperature | 74–81°F | 75–82°F | 75–81°F ✓ |
| pH Range | 6–8 | 6–7.5 | 6–7.5 ✓ |
| Temperament | aggressive | aggressive | Aggression risk ✗ |
| Max Size | 14" | 36" | Similar ✓ |
| Min Tank Size | 75 gal | 125 gal | 125 gal minimum together |
| Diet | Carnivore | Carnivore | — |
| Care Level | intermediate | advanced | — |
Tank Requirements for Oscar Fish + Silver Arowana
To keep Oscar Fish and Silver Arowana together, you need at minimum a 125 gallon tank. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Oscar Fish
Astronotus ocellatus
Oscars are large, intelligent South American cichlids often called 'water dogs' for their interactive personality. They recognize their owners, beg for food, and can be hand-fed. However, they grow fast, produce massive waste, and need at least a 75-gallon tank.
Full care guide →Silver Arowana
Osteoglossum bicirrhosum
The Silver Arowana (Osteoglossum bicirrhosum) is a advanced-level freshwater fish growing to 36 inches. Aggressive temperament, minimum 125 gallon tank.
Full care guide →